A light year is approximately 9.5 million km long. 'Barnard's Star' is 6 light years away from Earth. Calculate how many million
2 answers:
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Answer:
Explanation:
Using the law of conservation of momentum;
here;
There is a need for conservation of the total momentum that occurred before and after the collision.
So;
= mass of cart X
= mas 9f cart Y
= velocity of cart X (before collision)
= velocity of cart Y (before collision)
= velocity of cart X (after collision)
= velocity of cart Y (after collision)
So;
because the mass is identical and v represents the velocity of both carts.
Now;
= 2 m/s
= 0 ( at rest)
∴
m(2) = (2m)v
v = 1 m/s
Thus, we can see from the graphical image attached below that the velocity of X reduces to 1 m/s after collision with cart Y.
